CVE-2018-15133: Laravel Deserialization of Untrusted Data Vulnerability
First published: Thu Aug 09 2018(Updated: )
In Laravel Framework through 5.5.40 and 5.6.x through 5.6.29, remote code execution might occur as a result of an unserialize call on a potentially untrusted X-XSRF-TOKEN value. This involves the decrypt method in `Illuminate/Encryption/Encrypter.php` and PendingBroadcast in `gadgetchains/Laravel/RCE/3/chain.php` in phpggc. The attacker must know the application key, which normally would never occur, but could happen if the attacker previously had privileged access or successfully accomplished a previous attack.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Laravel Laravel | <=5.5.40 | |
| Laravel Laravel | >=5.6.0<=5.6.29 | |
| PHPUnit unit testing framework | ||
| Apache HTTP server | ||
| Laravel web application framework | ||
| composer/laravel/framework | >=5.6.0<=5.6.29 | |
| composer/laravel/framework | <=5.5.40 | |
Remedy
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
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Reference Links
- http://packetstormsecurity.com/files/153641/PHP-Laravel-Framework-Token-Unserialize-Remote-Command-Execution.html
- https://laravel.com/docs/5.6/upgrade#upgrade-5.6.30
- https://www.bleepingcomputer.com/news/security/fbi-androxgh0st-malware-botnet-steals-aws-microsoft-credentials/
- https://www.theregister.com/2024/01/17/fbi_botnet_warning/
- https://nvd.nist.gov/vuln/detail/CVE-2018-15133
- https://github.com/advisories/GHSA-qvqm-h22r-4cp9 (Advisory)
- https://laravel.com/docs/5.6/upgrade#upgrade-5.6.30;
Frequently Asked Questions
What is the severity of CVE-2018-15133?
The severity of CVE-2018-15133 is high with a severity value of 8.1.
How does CVE-2018-15133 occur?
CVE-2018-15133 occurs as a result of an unserialize call on a potentially untrusted X-XSRF-TOKEN value.
Which Laravel versions are affected by CVE-2018-15133?
Laravel Framework versions 5.5.40 and 5.6.x through 5.6.29 are affected by CVE-2018-15133.
How can I fix CVE-2018-15133?
To fix CVE-2018-15133, upgrade to Laravel Framework version 5.6.30 or newer. Refer to the official Laravel documentation for the upgrade process.
Where can I find more information about CVE-2018-15133?
You can find more information about CVE-2018-15133 in the NIST National Vulnerability Database (NVD), Laravel documentation, and Packet Storm Security website.
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